Influência do mapeamento estímulo-resposta sobre o efeito do estímulo precedente visual. / Influence of stimulus-response mapping on the effect of the visual prime stimulus.
AUTOR(ES)
Klebert Toscano de Souza Cintra
DATA DE PUBLICAÇÃO
2008
RESUMO
The aim of the present work was to determine the role of sensory-motor integration on the effect of the visual prime stimulus. The investigation intended also to delimit the strategy related to this prime stimulus effect modulation. In order to do that, variations of choice reaction time (RT) task were used, and RT and accuracy data were analyzed. We found a propensity to anticipate responses in the location-based choice RT task, due to the onset of the prime stimulus. The analysis revealed a speed-accuracy trade-off, indicative of criterion shift. An adaptation of the Signal Detection Theory showed that the decision criterion was raised, avoiding anticipatory and false alarm errors. The form-based choice RT task presented decrease in response time in the prime stimulus location, with no speed-accuracy trade-offs. Our main results indicate that stimulus-response integration can interfere with the prime stimulus effect through strategic modulations dependent on stimuli features relevant to the task in hand.
ASSUNTO(S)
decisão criterion decision tempo de reação vision reaction time accuracy visão sensori-motor integration integração sensório motor critério acurácia
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